Gauge



June 8, 1926. 1,588,361

. B. M. W HANSON GAUGE I Filed Oct. 23. 1924 14 10 g 1.9 a A llllllll Patented June 8, 1926 UNITED STATES PATENT OFFICE,

IBENGT M. W. HANSON, OF HARTFORD, CONNECTICUT; EINAR A. HANSON'AND CLAR- ENCE E. WHITNEY EXECUTORS 0F SAID BENGT M. W. HANSON, DECEASED.

GAUGE.

Application filed October 22, 1924. Serial No. 745,129.

of gauges as heretofore constructed, while,

at the same time, the cost of manufacturing the gauge is not to any material extent 1ncreased. In accordancewith the present in- Vention, the gauge has a handleand (i-gaug- 1ng member prov ded, at each; ozt its ends, with a gauging thread, the threads being independent of each other to the extent that,

when either is employed for gauging purposes, the other is not so used. The ganging member is secured to the handle in such manner that one or the gauging threads may be used forgauging purposes, and the other thread is received by, and housed within, thehandle so that it is protected against mutilation or other, damage. WVhen the thread at oneend of the gauging member becomes Worn, the member is detached from the handle and the Worn end is secured Within the handle, and therother end, which previously was housed Within the handle, is used for gauging purposes.

A- further aim of the invention is to provide a gauge of the character described wherein the gauging member may be Very securely fastened to the vhandle'in a simpl and eiticient manner,

A further object is'to provide a gauge of the character described which consists of a relatively few number'oi. parts andf'which may be economically maniifactured.

Other objects will be in part obvious and in part 'pointedout more in detail hereinafter. 1

features of construction, combination of'eleinents and arrangement ofIp'arts which will be exemplified in the construction hereinaf ter set forth, and'the scope of, the application of which will be indicated inthe appended claims.

,s In the accompanying drawings, wherein I haveshown, forillustrative -purposes, two

embodiments which the, present intention may take, v

The invention accordingly consists in the Figure 1 is a side elevational viewof the gauge with the handle in longitudinal section; s

Fig. 2'is an end view'thereof;

Fig. 3'is'a perspectiveyiew of a wedge emeloyed for binding the parts together; anc I FigQAE is a View similarto Fig. 1, but showing a slightly fdifierent'embodiment.

i Referring to the drawings in detail, m denotes ahandl'e'; b, a, gauging, member, and

c, a Wedge for'bindingthegauging member relative to the handle. v

In the'pres'ent illustrative disclosures, the

handle isof generally tubular fori'n' and, preferably, its external periphery is polygonal, as for 'e'fgampld'her ajg'onal, so that the device, when la don a'surface', Will'not roll. In the embodiment ofF 1, gai1 ging members '6 and 5" me secured to the 0pposite ends of the handle; Since the'constructions at the opposite ends of thehandle are similar, 'descriptionfofone is 'iI-' lustrati've of both. The; gauging meinbc s'r- Z), in the smtimttme, cq'niprises a generally cylindrical ;part having, at its op site ends, threads ll' 'and 12Which arefgenei'ally similar. By way iof illustration, these threads are'shown asbeiiiQ' identical in construction,'that is, of the same pitch, diameter, shape andfsize, If desired, the gauging member, intermediate its ends, may have an ui'ithread'ed portion 13. The gaugingineinber'inay be considered as liaving single thread extending substantially throughout its length, the thread being interrupted to form the portio'n'13. It \yiilbe understood, however, that the threads '11 and 12, in etfeet, are distinct, inth'at only one is ilsed for -gau ging purposes ate time and, there fore, when onejis used for gauging purposes there is no wear on the other. i

"The arrangement issuch that either end of the gauging member Z) maybe housed and'securedwithin, andprotectedfby; the

handle. In the present instance, the handle' is, by preference, hollow throughout its length an'dis proyidedat, at least, one ot its ends with an internalscre'wltliread. In Fig. 1, the handle is shown as har inginternal threads 10 and 1 O""at its opposite ends,

these threads being complementary to the gauging threads of therespective gauging erence, is of softer metal than the gauging member.

lhieans is provided for binding the interengaging tlxeaded portions of the handle and gauging member together so that the gauginginember will not rotate relative to" the handle and become loose. In the pres-- ent instance, this binding means is in the form of a wedge 0, but, except as defined in certain of the appended claims, the invention is not limited to this specific arrangenient; to '23, inclusive, the ends of the gauging member are fiat and, preferably, lie in planes to which theaxis of the gauging member is normal, and the wedge has aface 15 parallel to the planes of the ends of the gauging member. The wedge may directly engagethe inner end of the gauging member, but, preferably, there is interposed, between the wedge and gauging member, a washer or part 29. of relatively softer metal than the gauging member so as to avoid injury to the latter when the wedge is driven'home. The wedge is generally of cylindrical form and is positioned in, and extends through, holes 16 and 17 in opposite sides of the handle. The axes of the holes 16 and 17 are'disposed at an angle to a line perpendicular to the axis of the handle.

In the embodiment shown in Fig. 4, the extreme ends of the gauging member are tapered or conical, as at 24:. This arrange ment may be adopted where the gauging member isof such small diameter that it is preferable, during the operation of grinding the threads, to supportcthe gauging memher between centers having recesses I'GCGIV? ing these conical ends. In this case, there is interposed, between the wedgec' and the inner end of the gauging member, a part 7 25 having at one end a conical recess 26 re ce *ing the conical portion 24 of the ganging member.

From the foregoing description, it will be clear that, when the gauging member and handle are assembled, one of the gauging threads, for instance that designated by the numeral 11, may be employed for gauging purposes while the other gauging thread 12 ishoused within, and protected by, the handle. 'After the gauging thread 11 has become worn, the wedge may be knocked from place, the thread 12 unscrewed from the thread 10, the gauging mem, ber turned end for end, and the gauging thread 11 screwed into the handle, after which the wedge is driven home with a tap of a hammer. The gauging thread 12 may now be used for gauging purposes. It is to be observed that the cost of manufacturing the gauging member with a gauging thread at each end and the handle is little,

In the embodiment of Figs. 1'

abutment on the handle.

if any, greater than that of manufacturing a gauging member having a thread at one end only and a shank at the other end, and

a handle in which the shank hasa taper fit, At the same time, a device, constructed-in accordance with the present invention, has twice the life of a gauge having a plug with a single gauging thread. The threads 11 and l2'may be cut on the gauging member in'a single, operation and, to finish the gauging member, the same may be rotatably mounted on centers, and a grinding wheel may be moved longitudinally of the gauging member from one end to the other thereofso as to accurately grind both of the threads 11 and 12.

The manner in which the gauging memher is secured to the handle is of distinct advantage. One of the gaugingthreads of the gauging member is screwed into the handle and then'the interengaging threaded port-ions of-the handle and gauging member arebound together, in the present instance this binding action. resulting from longitudinally moving the gauging 'member relative to the handle by means of the wedge.

This arrangement is'not only very simple ing member, but in actual practice the arrangement shown meets all requirements. The tightening or binding of the parts together by means which moves the handle and gauging member axially'without 'rela tively turningthem is more efiicacious than attempting to bind thethreads' together by screwing the gauging. member against an In this latter event, considerable force is necessary, on account of the large interengaging frictional surfaces between the threads, to bind the threads tightly together and, in exerting such a force, it would be necessary to pros vide a fixture of some sort or another for gripping the protruding end ofthe gauging member so that it would not turn when, the handle was turned. Further than that, if the gauge thread were brought into binding action with the thread on the handle by merely turning the gauge member up against an abutment on the handle,the very minute projections on the gauging thread (which projections would be present no matter how finely the faces of this thread were finished) would either be sheared off or would cut fine grooves in the faces of the thread ofthe handle. When a force is exlli) erted on the gauging member opposite to have not been sheared off would follow in the grooves which they have already formed. longitudinally, as by means of the wedge 0, after the gauging plug is screwed into thehandle, the multiplicity of minute projections on the gauging thread will become embedded in the relatively softer metal of the thread on the handle and will thus lock the parts together.

As many changes could be made inthe above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter" of language,

might be said to fall therebetween.

thread at each end, a handle adapted to receive either of said threads of said gauging plug, and Wedge acting means for binding said plug within said handle.

3. A gauge of the character described including a. gauging plug having a. gauging thread at each end, a handle having screw thread means complementary to and adapted to receive the threads of said gauging plug, and Wedge acting means for binding the interengaging threaded portions.

f. A gauge of the character described including a gauging member having at its opposite ends substantially alike screw threaded portions, a handle having a threaded portion complementary to the threaded By moving the gauging member portions of said gauging member and adapted to selectively receive the same, and means carried by said handle and movable relative thereto for binding the interengaging threaded portions of the handle and gauging member together. I J

5. A gauge of the character described including a gauging member having a thread at each end, an elongated handle into which each of said threads is adapted to bescrewed, and means for urging the gauging member longitudinally of the handle to bind the parts together.

6. A gauge of the character described including an elongated gauging member having screw threaded portions at its opposite ends, an elongatedhandle having a threaded portion complemei'itary to the threaded por tions of said gauging member and adapted to selectively receive the same and a wedge for urging the handle and gauging member I longitudinally in opposite directions to bind together the interengaging threaded portions therebetween.

7. A gauge of the character described including an elongated gauging member having screw threaded portions at its opposite ends, an elongated handle having a threaded portion complementary to the threaded portions of said gauging member and adapted to selectively receive the same, a wedge for I urging the handle and gauging member lonsame, and a wedge extending transversely of said handle and cooperating -with said member, said wedge having a face disposed in a plane at right angles to the longitudinal axis of the gauging member.

BENGT M. W. Hanson. 

